Motor-propelled sled.



H. SMEDSHAIVIMER.

MOTOR PROPELLED SLED.

`APPLICATsoN man SEPT.23, 1918.

1,293,958, f Patented Feb.11,1919

A wmf-rm OF LKTCHVILLE, .NORTH DAKOTA.

MUTORFPRGPELLED SLED.

Application lle September 23, 1915.

To all whom may concern:

Be it known that l, HENRY SMnnsHAM- Msn, a citizen of the United,A States, residing at Litchville, inthe county of Barnes and State ofv North' Dakota, have invented cer tain new and useful lmprovements in Motor- Propelled Sleds; Vand l do hereby declare 'the following to be a full, clear, and exact description of the invention, suchas will enable others skilled in the art to which it ap4 pertains to malte and use the seme.

My invention has for its object to provide i an extremely simple and highly ecient motor-propelled sled; and, to this end, 1t consists of the novel devices andv combinations of devices hereinafter described and defined in the claims.

ln the acccmpanyin illustrate the invention, i cate like parts throughout the several Referring to the drawings, Y Figure l 'is a'side elevation ofthe invention; and

Fig. 2 is a plan view of the drawings, which views.

samel with s. some parts removed.

In carrying outthhe invention, li prefer.- ably, but not necessarily,- use a Vcom lete Ford automobile,- With lthe exception o the .tunning gear, and ring-mount the same to an or mary bob s ed.` In the drawings, this idea has been carried out,- with the enception that theA automobile and bob sled have been strip ed of all parte that are not essential to the illustration of the invention.

@i the parts ci the automobile illustrated, it is only necessary to note the :trarne 3, en-y gine d, radiator 5, enginedriving shaft 6, universal joint 7, transmission mechanism 8, hand-Wheel-equipped steering post 9, and latch lever 10.

Referring now to the bob sled, the numerals 11 and 12 indicate, respectively, the

front and rear runners thereof, and which runners support, in the customary manner, holsters 13. V'llhe front bolster 13 supports a beam 14: that is pivotally connected theretoI flat bars 28, the rear ends oi W ich are by a king-bolt 15, which permits steering movement of the front runners 11. The parts thus far described are of standard and well known construction.

llairsv of leaf' springs 16 support the frame 3 from the runners 1l and 12 and have their intermediate Yportions rigidly secured to the rear bolster `13 and beam 14 and their ends are'attached/ to the frame by linlrs 17. To draw the runners-'1,1 and 12 over the roadbed specification' of Letters Patent.

ke characters indi-l lFatented Feb, til, 1219.

serial ne. 255,353.

bya link 16 and the rear runners are at tached to said beam by a connection 20. The front runners 11 are steered in the same manner as the front Wheels of an automobile by attaching the same rearward of the beam 11i tothe lower end of the steering post 9 by a connection 21.

The vehicle is propelled, either forward or backward, from the engine by a pair of transverse axially alined traction drums 22 located at the rear of said vehicle, and each of the traction drums is provided with a shaft 23. To increase the traction of the drums 22, each thereof is provided with a plurality of radial blades 24. The traction roms 22 are rotated, either forward or backward, at will, by the transmission mechanimi 8 which is connected to the inner ends of the shafts 23 in the customary manner.

These -two traction drums 22 are substanrunners and are axially spaced apart only suiiciently to clear the did'erential mech- :mism 8, which is located therebetween. To increase the operative len 'th of the traction blades 2e, the inner en s thereof are entended beyond the respective ends or the drums 22 and are beveled frein their longitudinal edges to said ends of the drum.

The outer ends of the shafts 23 are jour naled in roller bearings mounted in the rear ends cit pair of bars 25, which constitute the s members of a push frame 26. These embrace the frame 3, with freedom forvertica swinging movement, and their forward ends are pivoted to the outer ends of a pair of relatively long trunnions 27,

as shovm in the form of bolts. The trunriveted to said bars 25 and their liront ends are connected to said trunnions close tothe frame 3 by forming therein, bores, through which the trunnions project. The urpose ofthe brace bars 28 is to relieve t e pres.

sure from the bars 25 on the outer ends of the trunnions 27 and transmit the same to said trnnnionselose to the-side members of the trame. Thesebrece bare 22 hold lll@ @he 'oars 25 laterally spaced rore the fresia-i7 meut,

To lioid the traction drums 22 onto the roadbed with averielole pressure, there is mounted on the reer end of the iframe 3 a rensverse rock shaft 2), having an arm B0 thai; isv connected to the latch lever l0 by e lon g rod 3l. "On the ends oil the roel; shaft 29i outward of the :frame 3, isc0 peil' of levers 32 having on their outer ends, which 'project upwardly und rearwardly, spring cups 33, which overlie spring seats 34 sev cured to the oars 25. Coiled springs 35 ere attached to the spring caps and spring seats Obviously, oy druwing backward on the lever l0, the springs 25 muy be placed under the desired tension.

To hold the traction( 'drums 22 against.

transverse movement of the roadbed, the reel ends of u pair oi converging brace rods i 3G are attached to a 'vertically swinging tudiual edges ci the traction. blades 24: will cut lliereim but when. the vehicle is traveling in soft snow, the traction drums 22 muy be depressed sufficiently to cause the blades 24C to enter fili-air full Width finto the snow,` and thereby edord e. suiicieu; buse of iewitli freedom ior vertical swinging niovememes@ sistfince to push die vehicle forward et the desired speed.

41. A motor-propelled vehicle including :runners a .mein ira-rue supported from the runners, e push 'frame pivoted to the main. freine 'lfor vertical swinging movement? u pair @if axially ulined truciion drui'ns having' circuuiferenially spaced traction lils,des,tlie inner ends of which are extended laeyond 'the inner ends ci seid traction drums to iu-I creuse the traction surfaces thereof, die shafts of the traction drums being g'ournaled in the pusli frame, u motor mounted on the mein freine and having e driving shaft, sind differential mechanism connecting 'the driving shaft to ilie drum shafts und located Within she projecting inneifz ends of the trac 'tion blades.

2. A motor-i)ropelled vvehicle including runners, e main frame supported from the runnersund having e pair of axially alined trunuious projecting outward from the sides liereof, u push frame having a. pair of bars embracing the mein frame and pivoted to the outer ends of the trunnions, and reinn forcing bers secured to the bars of the push frame and pivotally connecting the same to the trunnions close to the sides kof the mein frame and also holding the bers of' the push frame laterally spaced from the main frame.

l'n testimony whereof l ailix my signature in presence of two witnesses.

HENRY SlVEDSHAll/HVER. Witnesses: 0. T. Umori,

A. Eeuw. 

